Furnace wall



l ASSM? July 24, E923.

M. HP1-AK FURNACE WALL Filed Dec. l0. 1921 4 Sheets-Sheet l l may 24, 31923. www@ M. LEPTAK FURNACE WALL Filed Dec. 10 1921 4 SheetSShee 2 July 24, 1923. M6304? M. LIPTAK FURNACE WALL July 24, 92@

M. LIPTAK FURNACE WALL Filed Deo l0. 1921 4 Sheets-Sheet 4 the drawings of my Patented July 203, i923.,`

uniTaTi sTaTas raTanT Trina.

MICHAEL LIPTK, OF ST. PAUL, MINNESOTA, ASSIGNOR TO A. I. GREEN MRE BRICK COMPANY,

OF MEXICO, MISSOURI, A CORPORATION OF MISSOURI.

FURNACE wenn Application filed December 10, 1921. Serial No. 521,376. -I

To all whom it may concern:

Be it known that l, MioHAnL LIPTAK,

a citizen of the United States, residing" at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Furnace Walls; and do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable others skilled in the art to which it appertains to make vand use the same.

l My present invention has for its obJect to improve the construction of furnace walls with a view of p-roviding a simple, inexpensive and commercially practicable means for quick replacement of the inner or high temperature brick or tile inner wall facing without materially defacing the outer masonry wall. Generally stated, the invention consists of the novel construction, arrangement and combinations of parts hereinafter described and defined in the claims.

ln a generalway, this invention is in the nature of a modification of orl improvement on the formcf furnace wall illustrated in y pending application Serial Number 408.699, filed September 7, 1920, and broadly claimed in said prior application. Y

Inthe wall of the present application, the

outer masonry wall is or may be made up entirely of masonry blocks, towit: bricks or tiles, and the replaceable inner lining of the wall is made up entirely of high temperature` blocks, towit: fire bricks or tiles. As a distinctive feature of the present invention, the inner high temperature wall comprises horizontally aligned but horizontally spaced shelf-forming tiles that are extended into and partly imbedded within the outer masonry wall. These shelf-forming tiles, thus supported from the outer' masonry wall, together with supplemental shelfforming tiles interposed between and sup= ported thereby but not extended into the outer masonry wall, formvertically spaced horizontally extended shelves upon which the fire bricks of the high temperature inner or replaceable'wall are laid/to form ver tically spaced horizontally extending replaceable wall sections. The important re'- sults accomplished by the arrangement above generally indicated will be more fully ponsdered after first having deseribedthe .preferred embodiment of thepresent invention. v ln the accompanying drawings, which illustrate the invention, like characters inldicateLY like parts throughout the several fthesupplemental tiles of the outer wall;

Fig. 6 is a fragmentary plan View of the wall shown in Fig. 1, some of the tiles of the outer wall and shelf-forming tiles of the l5 inner wall being removed;

Fig..7 is a fragmentary elevation looking at Jie inner or high temperature face of the Fig. 8 is a vertical section taken approximately on the line -8-8 of Fig. 7

Fig. 9 is a fragmentary elevation looking at the outer face of the wall;

Fig. 10.is a plan view of the wall structure shown in Figs. l to 9, inclusive, but showing the main shelf-forming tiles and the supplemental shelf-forming 'tiles all removed;

Fig. 1 1 is a fragmentary elevation looking at the inner surface of the outer wall, the W inner or replaceable inner wall, including the supplemental and main shelf-forming tiles., being removed;

Fig. .12 is a view corresponding to Fig.

1, butillustrating a slightly modified construction; i

Fig. 13 is a perspective showing certain of the blocks of the shelf-formingr course remo-ved from the wall and slightlyl separated from each other; 30@ Fig. 14 is a plan view of the wall shown in Fig. 10; and f Fig. 15 isa fragmentary elevation looking at the inner surface of the outer wall, the i inner, or replaceable wall, including the H05 mam shelf-forming tiles, being removed. l

The outer or permanent masonry wall is made up chiefly of ordinary bricks l0 leid in mortar in the customary way, but to pro- .tile courses made up preferably of fire tiles 11, 12 and 1 3. rThe tiles 12 are the full width of the masonry wall 10. The tiles 11 are the main shelf-forming and supporting tiles of the replaceable inner wall and they are partly imbedded in the outer masonry wall 10 but project so that they will be flush with the inner surface of the replaceable inner wall. The tiles 13 are located between the tiles 12, aligned with the imbedded ends of the tiles 11 so that the said tiles 11, 12 and 13, when assembled, form a complete layer in the outer wall, with the tiles 11, as indicated, projecting for the purpose stated.

To adapt the anchored shelf tiles 11 to support the supplemental shelf tiles 14, said tiles 11, at their parallel edges, are rabbeted at 15 and the edges of the supplemental tiles 14 are reversely rabbeted so that the latter will be supported by and horizontally flush with the former.

The main body portion of the replaceable inner wall is made up of high temperature or fire bricks 16 laid in superimposed horizontal courses on the shelf-forming tiles, filling in the spaces between the vertically spaced horizontal shelves, as best shown in F ig. 1.

From the above, it is evident that the complete furnace wall, including what is herein particularly designated as the permanent outer masonry wall and the replaceable inner lire wall, may be made up entirely of masonry work.

When any portion of the inner fire wall has been burned away to a point where it requires replacement, the. defective ytire bricks or tiles maybe removed' and replaced without disturbing or taking down the permanent outer wall. bricks 16 have been burned away, thev may be removed and replaced without disturbing the shelf tiles. However, usually also some of the shelf tiles will be burned and require replacement and this may be done as follows: Obviously, the replacement of one of the supplemental shelf tiles 14 is a very simple matter since it does not extend into the outer wall. lf one of the partly imbedded main shelf tiles 11 requires replacement, it may be easily pulled or knocked out of position,I thereby making possible the replacement thereof `by a new tile. of the same character. This may be very readily done. Moreover, it may bev done without appreciably weakening the outer wall. This is so even if all of the said tiles 11 sho-nld be removed at one time, because the inner portion of said outerwall,

time.

lf-'only a few of the ifi-eens?.

between the horizontally spaced tiles 11, is left entirely intact, thereby ad'oiding the best kind of a support for the entire wall. Hence, it will be appreciated that it is important that said tiles l1 be spaced horizontally as described and that the shelves be completed by the supplemental tiles 14 that do not extend into the outer wall. However, in practice, only a few of the tiles 11 will necessarily be removed at any one From what has been said, it, of course, follows that the inner wall sections between the supporting shelves may be independently repaired, in whole or in part, without disturbing other sections. However, it will seldom be necessary to replace any complete horizontal wall section at any one time, but the repairs will usually be. local or `at different spotsor places. With such an arrangement, the outer wall structure will last indefinitely, while the inner lire wall may be replaced as oftenA as required. This, of course, reduces the cost of repairs and maintenance of the! complete furnace to a Aminimum and also makes it possible to quickly make such repairs with a resulting minimum loss of time in the use of the furnace, which is, in itself, frequently more important than the direct cost of the repairs.

By reference particularly to Figs. l() and 11, it will be noted that even when the inner replaceable vvall` including both the main and supplemental shelf-forming tiles, are removed, the outer or permanent wall is not materially weakened but is simply formed `with a plurality of pockets or d'epressions and between such pockets and depressions is left intact or, in other words, formed with complete pilasters thatare the full width of the outer wall and the pockets are rigidly' lbridged between these pilasters.

The somewhat modified construction illustrated in Figs. 12,- 13, 14 and 15 is like that illustrated in the views above described eX- cept that the main shelf-forming tiles 11a are made wider than the tiles 11 and are centrally split or divided and the permanent wall tiles 13u are made longer than the tiles 13 to fill the space back of each divided main shelf-forming tile 11a. rlhis arrangement increases the`load-carrying capacity of the main shelf-supporting tiles and still does not appreciably weaken thel ermanent outer w-all even when all of the s elf-forming -tiles are removed' because the pilasters or complete wall structures are. left intactv between the pockets formed. in the outer wall for said main shelf-supporting tiles.

iasy

lt will, of course, be lunderstood that the l be made in whole or in `part of fire bricks.

For instance, the inner bricks 0f th@ Said Leeaoav permanent outer wall might be fire bricks and the other bricks thereof might be commercial bricks.

What I claim is:

1. A wall structure comprising a perinanent masonry wall and a replaceable wall, said permanent wall having non-metallic elements constructed and arranged to form horizontal rows of vertically spaced pockets, and said replaceable wall including shelf forming'tiles that are detachably anchored in the pockets of said permanent wall and project into the replaceable wall and form horizontal shelves that support independ; ently replaceable overlying belts of the latter.

2. A wall structure comprising a permanent masonry outer wall and a replaceable masonry inner wall, said inner wall including 'main shelf-forming tiles partly imbedded directly in the masonry of said outer wall and horizontally spaced, and supplemental shelf-forming tiles supported by said main shelf-forming tiles and extended only within the inner wall space, said shelforming tiles supporting the horizontal sections of said inner wall.

3. The structure defined in claim 2 in f urther combination with tiles in the outer wall of the same thickness as said main shelfforming tiles and', together with the imbedded portions of `the latter, forming com- -plete courses in said outer wall.

4. The structure defined in claim 2 in which the masonry of said outer wall in a vertical direction is complete and permanent between the imbeddedv portions of said main shelf-forming tiles.

5. The structure defined' in claim 2 in which said main and supplemental shelfforming tiles have overlapping rabbeted edges.

6. A wall structure comprisinga perrnan nent outer wall having laterally spaced vertical rows of pockets but formed complete between said pockets` in combination with a replaceable inner wall including shelf-forming 'tiles having their outer portions anchored in the pockets of said outer wall.

7. The construction defined in claim 6 in which said inner w-all comprises masonry sections including said shelf-fonning tiles.

8. The structure defined in claim 6 in which said replaceable inner wall includes supplemental shelf-forming tiles supported on said anchored shelf-forming tiles, and

includes also masonry sections made between said shelf-forming tiles.y v

9. rllhe structure defined in claim 2 in which said main shelf-forming tiles are longitudinally split or divided, the sections thereof being laid edge to edge and imbedllled in the same pockets of the outer wal 10. The structure defined in claim 6 in which said shelf-forming tiles are longitugnally split or divided and laid edge to ge. v In testimony whereof I aix m signature.

MCHAEL IPTAK. 

